/**
 *    Copyright 2009-2019 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.apache.ibatis.scripting.xmltags;

import java.util.List;

/**
 * 混合的SqlNode，一个语句如下：
 * select * from user
 * <where>
 *   <if test="name != null and name != ''">
 *       and name = 'zxm'
 *    </if>
 * </where>
 *
 * 这个语句第一部分 select * from user 会包装成 StaticTextSqlNode
 * 第二个语句 <where>.....</where> 会包装成 WhereSqlNode
 * 第二个语句的WhereSqlNode 中因为有 <if>.....</if> 那么会包装成IfSqlNode
 * @author Clinton Begin
 */
public class MixedSqlNode implements SqlNode {
  private final List<SqlNode> contents;

  public MixedSqlNode(List<SqlNode> contents) {
    this.contents = contents;
  }

  @Override
  public boolean apply(DynamicContext context) {
    contents.forEach(node -> node.apply(context));
    return true;
  }
}
